Diamond Vantage 4506C4PDX4 4-1/2" x 7/8-5/8" Arbor Porcelain Turbo Diamond Blade - This Diamond Blade is much safer and more eco-friendly than abrasives. It is made of steel and diamonds, which retains its shape, cut after cut. The steel core is virtually indestructible, providing a much safer working environment when compared to conventional abrasives that can fracture and break. Sparks, odor and debris are all greatly reduced, improving working conditions for the operator.